T Jacob, born on 29 May 1958, is a retired Indian Administrative Service officer from the 1984 Tamil Nadu cadre. He holds a postgraduate degree in Industrial Management and a graduate degree in Electrical Engineering. Throughout his career, he served in various capacities including Secretary at New Delhi in the Administrative Reforms and Training, Pension and Public Grievances Departments from 7 April 2017 to 31 May 2018. His past roles encompass Additional Secretary, Joint Secretary, Principal Secretary, Commissioner, Project Director, Special Secretary, Director, Managing Director, District Collector, Deputy Commissioner, Deputy Secretary, General Manager, and Sub Collector.